Dwyer Instruments BULK FLOW MONITOR Catalog Page

RELA

4X 3/4˝ CONDUIT KNOCKOUTS

[12.69]

BULK FLOW MONITOR

FLOW

Monitors Movement of Solids and Liquids

BFM

BFS

5-9/64 [130.45]

LABELS PLACED ON FRONT COVER [SEE PRODUCT LABELS FOR DETAILS]

LED

INCREASE

OUT

[177.80]

+SENSOR-

3 [76.20]

FUSE

RED LED

TRANSFORMER

GREEN

COM

N/O

N/C

AC COM

E GND

117 VAC

BFM FLOW MONITOR

SENSITIVITY ADJUSTMENT POTENTIOMETER

SECTION A-A

6X 1/2˝ CONDUIT KNOCKOUT

SENSOR TIP

6´ 18

AWG WIRE

PRODUCT LABEL

FOR MAIN

CONTROLLER UNIT

1-19/32

[40.64]

1-1/2

[38.10]

FLOW SENSOR

3 [76.20]

1/2

3/32

[2.29]

SERIES BFM Bulk Flow Monitor provides effective monitoring for most ow/no ow

conditions in pipes and chutes. It’s sensing techniques, which use a Piezo element,

makes the BFM versatile for most ow/no ow applications.

The BFM Control offers many unique advance features that exceed the industry standards. The BFM Central Processing Unit monitors movement of almost anything through a pipe or chute system. The BFM is ideal for sensing the presence or absence of materials in Pneumatic Conveying Systems. The BFM offers adjustable sensitivity depending on the application demand. Also, it provides easy installation and requires

no maintenance. The unit has LED indicators – ow (green)/ no ow (red).

The BFS-1 Sensor yields many advance features. It externally mounts to the outside of the pipe or chute. It provides mounting tabs for easy installation. The Sensor is

Piezo

prewired with 3´ wire.

Flow Switches,

Series BFM has many practical applications. You can use it to monitor oil spray systems, discharge chutes, distributors, screw conveyors, drag conveyors, water systems, air systems, pneumatic systems, gravity feed systems, slurry systems, chemical processing, food processing and rotary drums.

MODEL CHART Model Description BFM-1

Control unit: NEMA 4X (IP66), polycarbonate housing, 120VAC

BFM-2

Control unit: NEMA 4X (IP66), polycarbonate housing, 220VAC

BFM-3

Control unit: NEMA 4X (IP66), polycarbonate housing, 12VDC

BFS-1

Sensor

SPECIFICATIONS BFM SPECIFICATIONS Service: Solids and liquids. Power Requirement: 120VAC, 220VAC or 12VDC. Power Consumption: .1A. Temperature Limits: 120°F (48.9°C). Output: Relay: SPDT rated 4A @ 125/250VAC, 1/10 HP @ 125/250VAC, 3A @

30VDC. TTL: 0-5 V.

Serial Communications: RS-232. Electrical Connection: Screw terminal. Conduit Connection: Knockouts (four 3/4˝ for power, six 1/2˝ for sensor and

outputs).

Enclosure Rating: NEMA 4X (IP66). Material: Polycarbonate. Weight: 3 lb (1.36 kg).

BFS SPECIFICATIONS Pipe Size: 1/2˝ to 60˝ (1.27 to 152.4 cm). Enclosure Rating: NEMA 4X (IP66). Electrical Connection: 3´ (0.9 m) of 18 gauge wire. Temperature Limits: 155°F (68.3°C). Materials: PVC type 1 grade 1 grey. Weight: 5 oz (141.8 g).

DWYER INSTRUMENTS, INC. XXX